Description
Winter is the best time to visit Hayle, as the number of birds in the estuary can be up to 18,000. Among the gull flocks, you can find racek černohlavý, racek malý, Racek středomořský, racek polární, racek šedý or even an American vagrant like a racek delawarský. American čírka obecná and hvízdák americký can also be seen among the thousands of native teals and hvízdák eurasijský. In autumn and winter, among the more common waders, including many kulík zlatý, there could be vodouš tmavý, kolpík bílý, jespák křivozobý, jespák malý, vodouš bahenní, jespák bojovný or an American wader like a jespák skvrnitý. Several different tern species can be seen on spring passage. The estuary is best viewed from the causeway bridge or the path around Carnsew Pool, which is favoured by morčák velký and morčák prostřední. All five of the world's diver species have also been seen there. The area is also good for ledňáček říční and it's worth visiting the hide at Ryan's field for a chance to see one as well as the resident koliha velká. In late summer, you may see an orlovec říční visiting the estuary if you're very lucky.
Details
Access
By road - From the town of Hayle, go west on the B3301 Carnsew Road along the estuary, then turn left onto Chenalls Road (signposted St Erth) and take the first right into the car park at Ryan's Field. From there, you can visit the hide and walk to the causeway bridge and Carnsew pool.

